README.md in cliutils-2.0.0 vs README.md in cliutils-2.0.1

@@ -3,10 +3,14 @@
 [![Build Status](https://travis-ci.org/bachya/cliutils.svg?branch=master)](https://travis-ci.org/bachya/cliutils)
 [![Gem Version](https://badge.fury.io/rb/cliutils.svg)](http://badge.fury.io/rb/cliutils)
 
 CLIUtils is a library of functionality designed to alleviate common tasks and headaches when developing command-line (CLI) apps in Ruby.
 
+# *Updating from 1.x.x to 2.0.0?*
+
+The big difference is schema changes for Validators, Behaviors, and Pre-Post Actions. Make sure you read the [wiki](https://github.com/bachya/cliutils/wiki "CLIUtils Wiki").
+
 # Why?
 
 It's fairly simple:
 
 1. I love developing Ruby-based CLI apps.
@@ -77,9 +81,10 @@
 
 Contributions are welcome and encouraged. To contribute:
 
 1. Fork it (http://github.com/bachya/cliutils/fork)
 2. Create your feature branch (`git checkout -b my-new-feature`)
+  * Make sure you add tests!
 3. Commit your changes (`git commit -am 'Add some feature'`)
 4. Push to the branch (`git push origin my-new-feature`)
 5. Create new Pull Request
 
 # License